Reversible bearing shoe



REVERSIBLMBARING SHOE,

Feb. 8 1927.

Filed- May 15, 1926 2 sheets-sheeti INVENTOR Feb. 8,1927.

H. K. WOLFE REVERSIBLE BEARING SHOE -Filed May 15, 1926 2 Sheets-Sheet 2lNvENToR Henry ///a// ATTORNEYS Fics. "i

HENRY K. WOLFE, OF CHENEY, WASHINGTON, ASSIGNOR-TO ROTARY ROD "\VEEDER &`MFG- CO., INCORPORATED, OF CHENEY, WASHINGTON.

REVERSIBLE EEAENG sHoE.

Application filed May 15, 1926.

The invention relates to rot-ary rod weeders of the type wherein a rodof polygonal cross section is moved forwardly androtated beneath thesurface of the soil to cut and macerate weeds, and the said inventiongenerally resides in the provision of an improved construction ofbearing shoe for that rotary rod and improved'v standards for mountingthe same, the saidl shoe being so constructed and shaped as to bereadily reversible to adapt the same either for acting to force the rodinto hard soil or to tend to prevent too deep penetration thereof intovery soft or sandy soil and the said mounting standards beingconstructed for so engaging the ground as to eliminate the making offurrows. y

he invention further resides in the provision of a bearing shoestructure embodying features of great strength and durability, in whicha readily replaceable thrust wear lug is provided, said lugbeingconstructed and mounted ina manner rendering possible the ready removalyand replacement thereof vwithout removing the shoe from its securerelation upon the carrying standard end.

In its more specific nature the invention further resides in those novel`details of' construction, combination and arrangement of parts', all ofwhich will be rstfully described, then be particularlypointed'out in theappended claims, reference being had to the accompanying drawings, inwhich:

Figure 1 is an end elevation of a rotary rod weeder with my inventionoperatively applied thereupon.

Figure 2 is a fragmentary end elevation showing the invention appliedreversely to the illustration in Figure l'. y

Figure 3 is a detail perspective view of the bearing shoe. j

Figure 4L is a side elevation of the bearing shoe, the side oppositethat illustrated in Figure 2 being shown.

Figure 5 is a horizontal section taken on the line 5-5 on Figure 4, aportion of a goose-neck type standard and a rod carrying bearing beingshown `in dotted line phantom. f v

Figure 6 is a diagrammatic crosssection of a mounting standard andillustrates the manner in which the same may bedrawn through the ground,either straight forward `the weeders.

that when the weeders are drawn across a Serial No. 109,295.

or partially'laterally without throwing up undesirable furrows.

Figure 7 is a view similar to Figure 5y and illustrates the manner inwhich the lhalf bearing member or thrust lug may be removed withoutremoving` the shoe from its standard. Y i y Figure 8 is a perspectiveview of'a slightly modified form of shoe.

In the drawings, in which like numerals of reference indicate like partsin all of the figures, l indicates the framing of a rotary rod weederstructure', 2 the balancing planl; thereof, 3 the supporting and tracition wheels, 4 the power transmitting devices through which rotarymotionis imparted to the rotary rod 5, which `is of polygonal shape incross section, and projects through 'and has bearing inthe particulartype of rod bearing which formspart of the subject matter of my presentinvention and is secured to the end of the peculiarly shaped supportingstandards 6 also forming `part of said invention.

ln the useof rotary rod weeders ofthe types now generally employedfarmers are meeting with much annoyance due to the throwing upoffurrowsby thestandards of, such weeders when 'drawn over and throughthe ground, which furrows collect water and form ditches. Thisnecessitates the use of additional implements, following the weedingfunction,rin order to leave the ground in the desired smoothstate.` Ob-.'viously this detracts greatly from the eiliciency of rotary rodweeders and limits the extent and popularity of ytheir use. l

The types of weeders in general'use ,are

in the neighborhood of 12 feet in width and employ vertical standards ofHat rectangu-` lar shape in cross section and which are mounted in amanner for, presenting f thev edgesthereof in the direction of travel ofIt is very common, however,

field one end or the other thereof will move in advance of the othercausing the standards to engage the ground partially laterally, throwingup considerable furrows.

In my present invention I aim to overcome this fault by providing thegoose-neck shaped and relatively narrow standards 6 .which are ofsubstantially ovate shape in cross section as lwill be seen byreference.

Vto Figure 6 of the drawing. In this gure Ihave shown, between the thinfull lines, the edge presented to the ground when theV weeder is beingdragged along perfectly straight; between the dot and dash lines, theedgepresented to the ground when the weeder is travelling with the rightend far in advance of the left; and, between the double dot and dashlines, the edge presented to the ground when the weeder is l`travellingvwith the left end thereof far in advance of ythe right. rIhis diagram`illustrates that in all three cases the obstructing areacpresented totheground is the same.

By using such goose-neck ovatek shaped standards, Yas the weeder isdrawn over the ground, the earthfthrown up by the stand- -ardswillfallback into the furrows proshank 11 to lie in the cut-out 12 formed invals the shankflush with the same, and Vthrough which Vone of the boltand nut Iconnections 9 passes to -serve' as a securing means both forthe shank7 4and the said member 10,.'

The shoulders 13 of the member 10 fit in u the recesses 14 formedtherefor in the shank i i shap'edto provide a'point 18 formed at thel 7,and the said member 10 includes a half bearing face 15`which opposes,-in cooperative relation, the like' shaped half bearing face 1.6 of :themain'sh'ank 7. y The usual rotary rod carrying bearing member 17 is'employed to ride in the bearing'provided therefor by the opposingbearing surfaces 15 and 16 above referred to.

Thebearing shoe 'shank is extended and juncture of the'edges 19 and 20.

'Itwill be noticed that both edges 19 and 2O 4Qf'the bearing shoe areextended in the sameidi'rection from the axis of the beardownwardly(upwardly ing, that is,-they both extend forwardly and l l whenreversed) fromthe axis,'theledge19 being more nearly horizontal than theedge 2O so that when the parts are positioned as shown in Figure 1,'the`bearing shoe will be adapt-ed for use 'in hard soil, andby reason of itsshape will tend to penetrate the groundas the weeder frame is pulledforwardly.

lVVhen used in sandy or soft soil where the rod A'will penetrate theground with ease, the bearing shoe is reversed, as shown in Figure 2,and will then have a tendency to ride up outio'fthe "ground, thuspreventing too deep rotary rod into the wardly bevelled as at 22 for thepurpose` clearly illustrated in the said Figure The structural featuresjust above mentioned serve to render possible the removal andreplacement of a worn half bearing and thrust-'lug ,member 10 withoutremoving the shoe from its secure relation upon the lower end `of arespective standard 6, it being possible bythis equipment to remove andreplace the said member by simply removing the foremost one of thesecuring bolts 9 which passes through the aperture` with which the shank11 of the member is provided. y

` By reference to Figure 7 of the drawings it will be observed that whenit is desired to remove and replace one of the members 10 it is onlynecessary to remove the foremost bolt 9 above mentioned when the saidmember can, by reason ofthe bevelled edge and curved edge` provisions'22and 9.1fbe

canted 'and bodily removed in the manner indicated in fulland dot linesin said figure` without disturbing the connection of the shoe memberwith the lower end of the bearing standard.

In Figure v8 of the drawings I have il- ,lustrated a slight modicationof the bearing shoe in `which the recesses le formed in the shoe shankterminate short of the'upper and lower edges of the said shank therebyto provide upper and lower abutment shoulders 23,the 'shoulders 13 ofthe member 10 being suitably shortened to lit `within the receivingrecesses.y In this manner the half bearing and thrust member iscompletely pocketed not Aonly longitudinally but vertically also andunbroken upper and lower shank edges are presented for engagement withthe ground, thus overcoming any tendency that might exist for weeds towork their way into the crevices that would surround the fully extendedshoulders illustrated in Figure 3 of the drawings with the attendanttendency to loosen or shear the securing bolts.

In the foregoing' description I have disclosed a simple'and practicalconstruction of rotary rod bearing shoe which is readily reversible toadapt the same to efficient use either in soft, sandy, or 'hard soil andin which the thrust receiving member is rigidly held in proper relationand against displacement, but in a manner for being readily removablefor replacement, thus permitting thisl important part, which issubjected to the` greatest amount of wear,y to be replaced whennecessary without replacement of a whole -new bearing shoe and withoutthe necessity of even removing the shoe from its standard. I have alsodisclosed a particularly efficient mounting standard for the shoe whichpermits draft of the weed-er `with a saving of power necessary to be'applied and which makes possible the weeding action in a manner leavingthe groundsmooth and level. i v W From this description, it is thoughtthat the novel details of construction, lmanner of application and theadvantages of my invention will bereadily apparent to those skilled inlthey art to which -it relates.

'What I claim is:

l. In rotary rod. weeders, a goose-neck standard of substantially ovatecross section with the thicker portion thereof to the front, and abearing shoe mounted on the lower' end thereof.

2. In rotary rod weeders, a goose-neck standard of substantially ovatecross secktion with the thicker portion thereof to the front, areversible bearing shoe, and means for securing the shoe to the lowerend of the standard to cause the shoe to project therefrom and to bereversible there-upon without changing the direction of projection.

3. In combination with 'a bearing standard of a rotary rod weeder, areversible bearing shoe, means for securing the bearing shoe to thestandard to cause the shoe to project therefrom and .to be reversiblethereupon without changing the direction of projection.

4. In combination with a bearing standard of a rotary rod weeder, .areversible bearing shoe, means for securing the bearing shoe to thestandard to cause the shoe to project therefrom and to be reversiblethereupon without changing the direction of projection, the said shoeincluding edges converging to a point, one converging edge being morenearly in line with the direction of travel than the other such edges,that engagement of one such edge with 'the ground will urge penetrationof the shoe into the ground when the shoe is secured in one position,and engagement of the other such edge with the ground will urge alifting of the shoe toward the surface of the groundL when the said shoeis secured in the reversed position.

5. In combination with abearing standard of a rotary rod weeder, therotary rod thereof, and a rod carrying bearing; a reversible bearingshoe including a shank having flanges adapted to fit over a part of thebearing standard, means for securing the shank to the standard toproject therefrom substantially in the direction of travel of theweeder, the said shoe including edges converging to a point, oneconverging edge being more nearly in line with the direction of travelthanthe other lsuch edge, that engagement of one such 4edge with 'the'ground will urge penetration of the shoe into the ground when the shoeis secured in `one position and engagement of theother such edge withthe ground will urge a lifting of the shoe toward the surface of theground when the said shoe is secured inthe reversed position. l i

6. In combination with a bearing standard ofa rotary rod weeder, therotary rod thereof, and a rod carrying bearing; a. rever-v sible bearingshoe including` a shank ,having y flanges' adapted to fit over apart ofthe bearing standard, a half bearing portion, a cut-out portion betweenthe flangesand merging with the half beaiing portion, and shoulderreceiving recesses in said flanges; a half bearing member having a shankto fit the cut-out portion, and shoulders adapted to fit'in and engagesaid recesses totake up thrust exerted upon the rod carrying bearingrotatably mounted between the half bearing portion and the h alf bearingniember; the said shoe shank and half. bearing shank each having a crossaperture adapted to receive bolts for securing the whole structurereversibly upon the standard to project forwardly therefrom; the saidshoe also including edges converging 'to a point, one

converging edge being more nearly in line ,l

with the direction of travel` than the other such edge that engagementof one such edge with the ground will urge penetration of the shoe intothe ground when the shoe is secured in one position, and engagement ofthe other such edge with' the ground Will urge a lifting of the shoetoward the surface 8.v A reversible bearing shoe including a shankadapted to be secured upon a carrying standard of a rotary rod weeder, ahalf bearing member removably mounted in theshoe and having a shankportion adapted to be secured with the shoe shank to the standard and abevelled edge presentedtoward the standard upon which they shoeismounted,

and individual bolts for securing the shoev shank and the shank portionto the standard whereby and by reason of the bevel edge provision thesaid half bearing member may be individually released and removed with4out disturbing the mounting of the shoe.

9. A vreversible lhearing; shoe including va shankxhaving anges adaptedto fit overa partffof `theloeaI-ng standard, a half bearing portion', acuteout portion'between the flanges and: merging with the half bearingportion, and shoulder receiving recesses in Said anges terminatingshortof the edges 'of the shoe toipresent unbroken edges of said shoe ytoengagement with the groundya hal bearing member having a shank to fitlthe cut-out portion, and shoulders adapted to fit in and engage saidlrecesses to take up thrust eX- erted upon the rod carrying `hearingrotatably mounted between the half bearing portion and the halfybearing*member; the Said shoeshank and half bearing shank each having acrossaperture adapted to receive bo'lts forvsecuring the Whole structurereversibly upon the standard to` pro-ject forwardly therefrom; thel saidshoe also includngeo edges converging. toa point, .one converging,edgebefingmore nearly in line with the direction of travel thantheother such edge that engagementv of one 'such edge Iwith-the groundwill urge penetration of the shoe into 26 when thesaid shoe is securedin the reversed 30 position. y

HENRY K.' VOLFE.

